- (interj.&adv.) Good-by; farewell; an expression of kind wishes at parting.
- (n.) A farewell; commendation to the care of God at parting.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). adieu. Retrieved September 24, 2026, from http://smartdefine.org/adieu/definitions/1970939 |
| Chicago | Webster's. 2011. "adieu" http://smartdefine.org/adieu/definitions/1970939 (accessed September 24, 2026). |
| Harvard | Webster's 2011, adieu, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/adieu/definitions/1970939>. |
| MLA | Webster's. "adieu" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/adieu/definitions/1970939> |